Heat and sound insulating panels



Jan. 16, 1968 P. BORDENAVE HEAT AND SOUND INSULATING PANELS 2 Sheets-5heet 1 F'j led March 17, 196].

Inventor Bordenave Jan. 16, 1968 P. BORDENAVE 3,363,391

HEAT AND SOUND INSULATING PANELS Filed March 17, 1961 2 Sheets-Sheet 2 Inventor P 5 a raena ve Attbrneys United States Patent 3,363,391 HEAT AND SOUND INSULATING PANELS Pierre Bordenave, Bagneres-de-Bigorre, Hautes-Pyrenees,

France, assignor to Etablissements Industriels D. Soule,

Bagneres-de-Bigorre, Hautes-Pyrenees, France, a French body corporate Filed Mar. 17, 1961, Ser. No. 96,460 Claims priority, application France, Mar. 18, 1960, Patent 1,259,540; Feb. 24, 1961, Patent 79,281 1 Claim. (Cl. 52-578) The present invention relates to panel members which may be assembled together to constitute heat insulating walls or enclosures. The invention also relates to the walls or enclosures so obtained.

According to the invention there is provided an insulating panel comprising a core of heat and/or sound insulating material on the opposite faces of which are secured external sheets or plates, one or more of the edges of which, are bent over to form one or more flanges whereby two or more such panels may be secured together by such flanges, said flanges also rigidifying the panel.

In order that the invention may be more clearly understood, reference will now be made to the accompanying drawings which show diagrammatically several embodiments of panels or of assemblies of panels according to the invention, by way of example and in which:

FIGURE 1 shows in section four panels manufactured and assembled according to the invention,

FIGURE 2 shows a plan view of the assembled panels of FIGURE 1,

FIGURE 3 shows in section to a larger scale, a fixing detail of these panels,

FIGURES 4 to 6 diagrammatically show in section, other embodiments of panels according to the invention.

Referring now to the drawings, the embodiment in FIGURE 1 shows four panels 1, 2, 3 and 4 each comprising a core of insulating material 5, to the exterior face of which are secured two external sheets 6 and 7. One or more of the edges of these two sheets are bent over at a right-angle in such a way as to form flanges 8 and 9 for the panels 1 and 2, 10 and 11 for the panel 3 and 12 for the panel 4.

The various panels are assembled together as shown diagrammatically in FIGURE 1, by butt welding of the above-mentioned flanges. A detail of this fixing is shown at 13 in FIGURE 3.

The panels 1 and 2 are in the form of rectangular plates, the panel 3 co-operating with panel 4 to form a corner obtained by a first bending of the exterior sheet at 14 before the bending-over constituting the flange 11.

The panel 4, also consisting of the three basic members, internal insulating core and external sheets 6 and 7 has flanges 12 only on the sheet 6. The edge of the sheet 7 is not bent over and extends beyond the insulating plate 5 by a length equal to that of the flange 10.

The shape of the insulating cores 5 of the panels 3 and 4 is such that the assembly of these panels constitutes a dihedron with a core, without losing the continuity of the insulating qualities.

FIGURE 4 shows, diagrammatically and in section, two assembled panels essentially consisting of an insulaing core 15 and two external sheets 16 and 17 secured thereto, but the edges 18 and 19 of the sheets are bent at an angle different from a right angle, the two panels being assembled together by welding, riveting, bolting of the flanges 18 and 19, or any equivalent process.

FIGURE 5 shows diagrammatically and in section a panel, the edges of which are bent in the same direction with regard to the insulating panel, in such a way that the flanges 20 are enclosed in the flanges 21.

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In order still further to improve the rigidity of the panel the flanges 20 and 21 can be joined by welding, riveting, bolting, clamping etc. and one or both of the flanges can be modified so as to have an extra bend 22.

Another disposition consists in joining at 30, by welding for example, the flanges 23 and 24, if it is required that the flanges do not extend beyond the external plane of the panels.

FIGURE 6 shows diagrammatically and in section an assembly of panels according to the invention in which the insulating core and the external sheets are curved instead of being plane.

FIGURE 7 shows a basic angle panel according to the invention in which the insulating core 25 and the sheets 26 and 27 are constituted by dihedrons, the edges of the sheets 26 and 27 being bent over in order to constitute flanges 28 and 29.

The invention is not limited to the nature of the materials constituting the insulating core, provided that this ensures heat and/or sound insulation, or insulation against vibrations, and allows the external sheets or plates provided with flanges to be secured thereto.

The core can be made of conglomerated insulating material or of expanded resins or other cellular material which can be cast in situ between the external sheets or plates, thus carrying out the adhesion of the insulating core with the said external sheets or plates by this operation. Alternatively, the exterior plates or sheets may be adhered to the pre-shaped core material.

The external sheets or plates may be of the same material or of dilferent material, thus one may be of metal, for instance of iron or aluminium, and the other may be in the form of a sheet of wood or of ply, the core being of resins. In this case the bending over of the edge forming the flange can be replaced by joining a piece in or by moulding to shape.

It is also possible that only one of these external plates be bent over in such a way as to constitute a flange, the other plate being welded on to its extension.

Each panel may have a rectangular or polygonal shape, and may have straight or curved sections.

The flanges made on an external plate by bending or shaping can continue over the entire perimeter or only on a part of the latter.

The panels thus made have a great rigidity for a minimum weight. Heat and/ or sound insulating walls can be manufactured by joining the flanges of these panels in any convenient way.

This process for manufacturing heat and/ or sound insulating walls or walls which insulate from vibration is particularly important in its application to the manufacture of passenger cars to the manufacture of lightweight insulated huts and in general to the manufacture of any insulating enclosure in which lightness of construction must be coupled with rigidity and solidity.

To this end a plurality of panels can be assembled in order to constitute an insulating wall, and a plurality of walls constructed in this manner may subsequently be as sembled in the same way as the panels constituting the walls, by securing together the flanges on the edges of the co-adjacent walls, by any convenient process such as welding, bolting, riveting, clamping or the like.

I claim:

1. A wall surface comprising a plurality of panels, each of said panels comprising a core of insulating material, a layer of rigid sheet material secured directly to and throughout each of the two major opposed faces of said core, and a flanged edge on at least one end of at least one of said layers of sheet material, and at least one end of one of said layers extending beyond the core of insulating material to form a flange co-planar with that said layer, coadjaeent flanged edges of coadjacent panels 2,691,432 10/1954 Klein et a1. -Q. 52-584 being directly secured one to the other. 3,031,044 4/ 1962 Stitt et a1. 52-508 7 References Cited FOREIGN T UNITED STATES PATENTS 5 r 486,612 6/ 1938 Great Bntaln.

8/ 1926 Porbeck 52406 JOHN E. MURTAGH, Primary Examiner. V1933 Junkers 52 618 FRANK L. ABBOTT, CORNELIUS D. ANGEL, RICH- 5/1934 Sayler 52-618 ARD W COOKE E 5/1942 Palmer 52-578 xammm' 7/1943 Dieter 52. 51s 10 A. G. CRAIG, L. R. RADANOVIC, Assistant Examiners. 

1. A WALL SURFACE COMPRISING A PLURALITY OF PANELS, EACH OF SAID PANELS COMPRISING A CORE OF INSULATING MATERIAL, A LAYER OF RIGID SHEET MATERIAL SECURED DIRECTLY TO AND THROUGHOUT EACH OF TWO MAJOR OPPOSED FACES OF SAID CORE, AND A FLANGED EDGE ON AT LEAST ONE END OF AT LEAST ONE OF SAID LAYERS OF SHEET MATERIAL, AND AT LEAST ONE END OF ONE OF SAID LAYERS EXTENDING BEYOND THE CORE OF INSULATING MATERIAL TO FORM A FLANGE CO-PLANER WITH THAT SAID LAYER, COADJACENT FLANGED EDGES OF COADJACENT PANELS BEING DIRECTLY SECURED ONE TO THE OTHER. 